This is actually pretty interesting. "Web Serial is a web API that allows a website to read and write to serial devices using JavaScript... While modern computers don't typically include serial ports, serial devices connected to a USB port or paired via Bluetooth can advertise themselves as serial-capable devices so they appear as serial ports in the operating system." So, for example, "Web Serial could be used to read power data from an off-the-shelf USB power meter and display it in Firefox." This opens up all sorts of possibilities for remote labs and sensors.
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